First, clean it. If you have not cleaned your sharpener on a regular basis, the surface could be loaded up with metal fines (also known as “swarf” buildup) which clog the stone surface affecting its performance. If you are concerned that the diamond may have worn off the stone, rub the sharpener against an old glass jar. If the sharpener scratches or frosts the glass, then there is diamond on the sharpener ready for your sharpening needs.
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Articles in this section
- Are all diamond sharpeners the same?
- Are all DMT products made in the USA?
- I’m interested in buying your products. Could you please send me a price list?
- Where can I buy your sharpeners?
- Which grit should I use?
- What is the warranty on your sharpeners?
- How long should the diamond last on a sharpener?
- What are the differences in the DMT diamond surfaces?
- How do I take care of my diamond sharpener?
- Do you have anything that I could use to sharpen my bread knife or serrations on a folding knife?